The left side of the stairs is against the foundation. The drywall you see at the top of the stairs was done by the builder and is above grade. The drywall on the right side is a wall separating the stairs from the basement. The basement is unfinished.

jaydevries

01-10-2013 10:41 PM

not much to choose from maybe glue some 1/2 inch foam board seal tape seams then hang 1/2 drywall or better yet densglass where poured walls are at using tapcons

ryanmcl

01-10-2013 10:52 PM

wont i have o move the stairs off the wall at least a 1/2 in to get a full moisture barrier? I though having that wood direct on the foundation would be a bad idea.

Interesting the builder would do this. The house is 1.5 yrs old.

carpdad

01-10-2013 11:11 PM

Some situations call for compromise. This is where you tell yourself, :whistling2:, moisture barrier is more important than the insulation.
About the same as previous poster advised, although you can also put 1x furring strip, pressure treated, 24" o.c., foam panel in between, then cover with sheetrock. I used denseshield myself, but it needs to be skim coated before painting due to fibermesh skin.

mae-ling

01-10-2013 11:27 PM

How wide is is from drywall wall to concrete wall?
As much styrofaom as you can glued to the wall. Then 1/2" drywall glued to foam and concrete screws.

Gary in WA

01-10-2013 11:36 PM

Is the concrete wall against the garage fill or a crawlspace? Or is it partially above grade? Or an exterior wall? Where are you located?

Gary

ryanmcl

01-10-2013 11:47 PM

It is against garage fill. I am in northern Illinois. The foundation wall is 9 ft under grade.

Beepster

01-11-2013 09:22 AM

I had a pretty similar situation (maybe even tighter) and the inspector let me fasten the drywall directly to the block wall Which I did using cement nails. I did this being moisture wasn't a problem and that wall would be slightly warm than an outside wall.

As previously said, sometimes you have to compromise. Yes, if you could snap your fingers and make it 100% correct you would.

B

brockmiera

01-11-2013 11:34 AM

I have this same situation in my home and I 'm not sure what to do either. Hopefully someone here has done it and can shed some light on it for us.

On a side note: I don't think you should be spending money putting pink xps on an interior wall.

mae-ling

01-11-2013 11:39 AM

Here if your stairs are wider then 36" drywall to drywall you can make them narrower and then put in as much xps (foam) as you can then use concrete screws on the drywall.

ryanmcl

01-11-2013 12:09 PM

Currently from drywall to drywall at the top the are 39". Would i remove the entire stair case to modify them?